#include <iostream>
#include <vector>

using std::cout;
using std::endl;
using std::vector;

void test()
{
    vector<int> number;
    /* number.reserve(10);//预留空间 */
    number[0] = 1;
    /* number.push_back(1); */
}

int main(int argc, char *argv[])
{
    test();
    return 0;
}

